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Why is LINQ JOIN so much faster than linking with WHERE?

I've recently upgraded to VS 2010 and am playing around with LINQ to Dataset. I have a strong typed dataset for Authorization that is in HttpCache of an ASP.NET WebApplication. ...
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in_array multiple values

... Intersect the targets with the haystack and make sure the intersection is precisely equal to the targets: $haystack = array(...); $target = array('foo', 'bar'); if(count(array_intersect($haystack, $target)) == count($target)){ // all of $target is in $haysta...
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Why does only the first line of this Windows batch file execute but all three lines execute in a com

I have a batch file that executes three Maven commands, one after the other. Each command can be successfully executed in the script - by itself!. But when I add all three commands to the same file, only the first one executes before the script exits. Any idea why? ...
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Matplotlib (pyplot) savefig outputs blank image

...ould adjust the values I pass to plt.subplot(); maybe try values 131, 132, and 133, or values that depend whether or not T0 exists. Second, after plt.show() is called, a new figure is created. To deal with this, you can Call plt.savefig('tessstttyyy.png', dpi=100) before you call plt.show() Save ...
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adding noise to a signal in python

I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic. 7 Answer...
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Difference between no-cache and must-revalidate

...st-Modified, the agent has nothing to use to validate what it has in cache and must download the whole payload again. So when the RFC says "revalidate" that probably means, re-fetch. – Luke Puplett Nov 13 '13 at 11:55 ...
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In Python, how do I use urllib to see if a website is 404 or 200?

... edited Apr 16 '15 at 6:27 AndiDog 59.3k1616 gold badges145145 silver badges195195 bronze badges answered Nov 13 '09 at 0:46 ...
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JavaScript regex multiline flag doesn't work

...d news is that you can work around it by using a character class (e.g. \s) and its negation (\S) together, like this: [\s\S] So in your case the regex would become: /<div class="box-content-5">[\s\S]*<h1>([^<]+?)<\/h1>/i As of ES2018, JavaScript supports the s (dotAll) f...
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Escape regex special characters in a Python string

...o write ([\"]) as a plain string, you'd need to double all the backslashes and write '([\\"])'. Raw strings are friendlier when you're writing regular expressions. In the substitution pattern, you need to escape \ to distinguish it from a backslash that precedes a substitution group, e.g. \1, hence ...
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Running a specific test case in Django when your app has a tests directory

...lan. Encountered the same problem as hekevintran. Switched to django-nose and it fixed that issue, also works much better than the default Django test runner. – LeeMobile May 6 '11 at 15:29 ...